Home / 1,280,438.34-1,767,001.27-707,474.43

Finding the Fourth Proportional to 1,280,438.34, 1,767,001.27 and 707,474.43

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Solution

The fourth proportional to 1,280,438.34, 1,767,001.27 and 707,474.43 is: 976,312.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,438.34 : 1,767,001.27 = 707,474.43 : x
  2. Step 2: Convert to fraction form
    1,280,438.34/1,767,001.27 = 707,474.43/x
  3. Step 3: Cross multiply
    1,280,438.34x = 1,767,001.27 × 707,474.43
  4. Step 4: Simplify right side
    1,280,438.34x = 1,250,108,216,302.53
  5. Step 5: Solve for x
    x = 1,250,108,216,302.53/1,280,438.34
  6. Step 6: Final answer
    x = 976,312.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.